Bicycle warning sign



FIG. 1 is a front elevational view of the bicycle warning sign.

FIG. 2 is a right-side view of the bicycle warning sign.

FIG. 3 is a left-side view of the bicycle warning sign.

FIG. 4 is a top view of the bicycle warning sign.

FIG. 5 is a bottom view of the bicycle warning sign; and,

FIG. 6 is a rear view of the bicycle warning sign.

The broken line showing the bicycle is for the purpose of illustrating an environmental structure and forms no part of the claimed design. 

CLAIM The ornamental design for a bicycle warning sign, as shown and described. 